20146768770 has 32 divisors (see below), whose sum is σ = 48358620288. Its totient is φ = 5371763328.

The previous prime is 20146768711. The next prime is 20146768819. The reversal of 20146768770 is 7786764102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211227 + ... + 291393.

It is an arithmetic number, because the mean of its divisors is an integer number (1511206884).

Almost surely, 2^20146768770 is an apocalyptic number.

20146768770 is an abundant number, since it is smaller than the sum of its proper divisors (28211851518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20146768770 is a wasteful number, since it uses less digits than its factorization.

20146768770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88554.

The product of its (nonzero) digits is 790272, while the sum is 48.

The spelling of 20146768770 in words is "twenty billion, one hundred forty-six million, seven hundred sixty-eight thousand, seven hundred seventy".